Don't populate URL data in WebDropData when dragging files.

ui/base/dragdrop/os_exchange_data_provider_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/dragdrop/os_exchange_data_provider_win.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
@@ skipping 368 matching lines @@
   STGMEDIUM* storage_plain = GetStorageForBytes(utf8_html.c_str(),
                                                 utf8_html.size());
   data_->contents_.push_back(new DataObjectImpl::StoredDataInfo(
       Clipboard::GetTextHtmlFormatType().ToFormatEtc(), storage_plain));
 }
 
 bool OSExchangeDataProviderWin::GetString(base::string16* data) const {
   return ClipboardUtil::GetPlainText(source_object_, data);
 }
 
-bool OSExchangeDataProviderWin::GetURLAndTitle(GURL* url,
-                                               base::string16* title) const {
+bool OSExchangeDataProviderWin::GetURLAndTitle(
+    OSExchangeData::FilenameToURLPolicy policy,
+    GURL* url,
+    base::string16* title) const {
   base::string16 url_str;
-  bool success = ClipboardUtil::GetUrl(source_object_, &url_str, title, true);
+  bool success = ClipboardUtil::GetUrl(
+      source_object_,
+      &url_str,
+      title,
+      policy == OSExchangeData::CONVERT_FILENAMES ? true : false);
   if (success) {
     GURL test_url(url_str);
     if (test_url.is_valid()) {
       *url = test_url;
       return true;
     }
   } else if (GetPlainTextURL(source_object_, url)) {
     if (url->is_valid())
       *title = net::GetSuggestedFilename(*url, "", "", "", "", std::string());
     else
@@ skipping 630 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 // OSExchangeData, public:
 
 // static
 OSExchangeData::Provider* OSExchangeData::CreateProvider() {
   return new OSExchangeDataProviderWin();
 }
 
 }  // namespace ui